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Revit Based HydraLIST (Ribbon/Toolbar/Location)

Button: Create Stocklist Error Type: Command Failure for External Command

Description:

This error appears immediately when trying to run Create Stocklist, the dialog box never appears. 

Revit could not complete the external command... System.NullReferenceException

Solutions:

Cause:

The Create Stocklist program is looking for some calc parameters that don't exist for some fittings / devices in your current system. 
Solution:

Run the Setup button from the HydraCALC ribbon then attempt to run the Create Stocklist command again, and it should work. 

This issue will be fixed in a future program update so this workaround is no longer required. 

If you recieved this error, and the listed solutuon doesn't fix it for you, please contact support at revitsupport@hydracad.com
Updated: Nov. 28, 2022, 11:53 a.m. Created: Feb. 11, 2021, 4:18 p.m.